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  • Open Access

    ARTICLE

    Effects of Root Cutting on Morphological Characteristics and Endogenous Hormone Levels of Quercus variabilis Seedlings

    Ruoyi Ni#, Hao Dou#, Shuwen Bi, Tiantian Wang, Jin’e Quan*, Xitian Yang*

    Phyton-International Journal of Experimental Botany, Vol.92, No.10, pp. 2907-2920, 2023, DOI:10.32604/phyton.2023.030689

    Abstract The objective of this study was to investigate the effects of root cutting stress on the dynamic changes of endogenous hormone content and growth characteristics of Quercus variabilis roots, and to explore the physiological role of endogenous hormones in regulating root-crown interactions in the short term. The morphological characteristics and endogenous hormone contents of normal roots (no root cutting, CK) and cut roots (cut by 1/3 of the length of the main root, RP) were determined by liquid chromatography, which was combined with mass spectrometry at different levels of different developmental stages. The results showed that the root growth indexes… More >

  • Open Access

    PROCEEDINGS

    Gas Transport Through Nanochannels: Surface Effect and Molecular Geometry Effect

    JianHao Qian1, HengAn Wu1, FengChao Wang1,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.26, No.4, pp. 1-2, 2023, DOI:10.32604/icces.2023.09144

    Abstract Gas transport through nanochannels is ubiquitous in nature and also plays an important role in industry. The gas flow in this regime can be described by the Knudsen theory, which assumes that molecules diffusely reflect on the confining walls [1]. However, with the emergence of low dimensional carbon-based materials such as graphene and carbon nanotubes, it has been evidenced that this assumption might not hold for some atomically smooth surfaces, resulting in an anomalous enhancement of gas flux [2]. Moreover, in Knudsen theory, gas molecules are usually treated as mass points and distinguished solely by molecular weight, which cannot interpret… More >

  • Open Access

    ARTICLE

    Inoculation of Chlorella and Food Waste Improves the Physio-Morphological Features of Red Pepper by Regulating Activating Antioxidant Defense System

    Sang-Mo Kang1,#, Shifa Shaffique1,#, Muhammad Imran2,#, Su-Mi Jeon3, Shabir Hussain Wani5, Muhammad Aaqil Khan4, Peter Odongkara1, Eun-Hae Kwon1, Yosep Kang1, Joon-Ik Son6, Won-Chan Kim1,*, In-Jung Lee1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2699-2711, 2023, DOI:10.32604/phyton.2023.028224

    Abstract Food waste is recognized as a valuable source for potential agricultural applications to supply organic matter and nutrients to arable soil. However, the information on the combined application of food waste and the plant growth-promoting bacterial strain, Chlorella, related to plant metabolic features and sodium chloride content in arable soil is limited. The present study was conducted to investigate the exogenous application of food waste along with Chlorella, which improved the physio-morphological features of red pepper. Our results revealed that this combination enhanced the organic matter in the soil, ultimately improving the fertility rate of the soil, and the physio-morphological… More >

  • Open Access

    ARTICLE

    Pre-Breeding Genetic Diversity Assessment of Tomato (Solanum lycopersicum L.) Cultivars Based on Molecular, Morphological and Physicochemical Parameters

    Jameel M. Al-Khayri1,*, Salha M. Alshamrani2, Adel A. Rezk1, Wael F. Shehata1, Mustafa I. Almaghasla3, Tarek A. Shalaby3,4, Ahmed M. Saad5, Fatmah A. Safhi6, Muhammad N. Sattar7, Arafat A. Abdel Latef8, Mahmoud Z. Sitohy5, Abdallah A. Hassanin9,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1493-1512, 2023, DOI:10.32604/phyton.2023.027375

    Abstract Appropriate knowledge of the parental cultivars is a pre-requisite for a successful breeding program. This study characterized fruit yield, quality attributes, and molecular variations of ten tomato cultivars during three consecutive generations under greenhouse conditions. Peto 86, Castle Rock, and Red Star cultivars showed the highest fruit yield (kg/plant), total phenolic compounds (TPC), and sap acidity. Principal component analysis categorized the evaluated fruit yield into three groups based on their quality attributes. A robust positive correlation appeared among traits inside each group. A positive correlation was likewise noticed between the first and the second groups. However, a negative correlation was… More >

  • Open Access

    ARTICLE

    Rheological and Morphological Characterization of Modified Bitumen with Cup Lump Rubber

    Mohammed Albuaymi1, Suleiman Abdulrahman2,3, Fayez Alanazi4, Hani Alanazi1,*, Musa Adamu5,6

    Journal of Renewable Materials, Vol.11, No.5, pp. 2433-2451, 2023, DOI:10.32604/jrm.2023.026751

    Abstract Pure bitumen is not suitable for heavy traffic loads; hence modifiers are used to improve the bitumen performance. Recently, cup lump rubber (CLR) has become a preferred modifier due to its outstanding performance and less cost. However, little is known about the interactions between CLR and bitumen. Thus, this study investigates the behavior of bitumen with CLR. Four percentages of CLR (2.5%, 5.0%, 7.5%, and 10.0% by weight of bitumen) were used to modify conventional 60/70 penetration grade bitumen. The modified bitumen was evaluated through different laboratory testing such as dynamic shear rheometer, rotational viscosity, softening point, bending beam rheometer,… More >

  • Open Access

    ARTICLE

    Improvement of Selected Morphological, Physiological, and Biochemical Parameters of Banana (Musa acuminata L.) Using Potassium Silicate under Drought Stress Condition Grown in vitro

    Hosny Abdel Aziz1, Mohamed Sharaf2,3, Magdy Omar4, Ahmed Abou El-Yazied5, Nada Ibrahim AlJwaizea6, Shaimaa Ismail5, Mohamed M. A. Omar7, Khadiga Alharbi6,*, Amr Elkelish8,9, Moataz Tawfik10

    Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 1019-1036, 2023, DOI:10.32604/phyton.2023.026769

    Abstract Drought stress has become more common in recent years as a result of climate change impacts on the production of banana crops and other fruit trees. The growth and productivity of Musa spp are severely impacted by the gradual degradation of water resources and the erratic distribution pattern of annual precipitation amount. The aim of the work includes increased drought tolerance in light of water scarcity in the world as a result of the bananas’ being gluttonous for water needs. This investigation was carried out from 2019 to 2020 to study the effect of potassium silicate on morphological growth and… More >

  • Open Access

    ARTICLE

    Fast Segmentation Method of Sonar Images for Jacket Installation Environment

    Hande Mao1,2, Hongzhe Yan1, Lei Lin1, Wentao Dong1,3, Yuhang Li1, Yuliang Liu2,4,*, Jing Xue5

    Intelligent Automation & Soft Computing, Vol.36, No.2, pp. 1671-1686, 2023, DOI:10.32604/iasc.2023.028819

    Abstract It has remained a hard nut for years to segment sonar images of jacket installation environment, most of which are noisy images with inevitable blur after noise reduction. For the purpose of solutions to this problem, a fast segmentation algorithm is proposed on the basis of the gray value characteristics of sonar images. This algorithm is endowed with the advantage in no need of segmentation thresholds. To realize this goal, we follow the undermentioned steps: first, calculate the gray matrix of the fuzzy image background. After adjusting the gray value, the image is divided into three regions: background region, buffer… More >

  • Open Access

    ARTICLE

    Automatic Optic Disc Detection in Retinal Images Using FKMT‒MOPDF

    Kittipol Wisaeng*

    Computer Systems Science and Engineering, Vol.45, No.3, pp. 2569-2586, 2023, DOI:10.32604/csse.2023.033226

    Abstract In recent days, detecting Optic Disc (OD) in retinal images has been challenging and very important to the early diagnosis of eye diseases. The process of detecting the OD is challenging due to the diversity of color, intensity, brightness and shape of the OD. Moreover, the color similarities of the neighboring organs of the OD create difficulties during OD detection. In the proposed Fuzzy K‒Means Threshold (FKMT) and Morphological Operation with Pixel Density Feature (MOPDF), the input retinal images are coarsely segmented by fuzzy K‒means clustering and thresholding, in which the OD is classified from its neighboring organs with intensity… More >

  • Open Access

    ARTICLE

    Study of Thermal, Phase Morphological and Mechanical Properties of Poly(L-lactide)-b-Poly(ethylene glycol)-b-Poly(L-lactide)/Poly(ethylene glycol) Blend Bioplastics

    Yodthong Baimark*, Theeraphol Phromsopha

    Journal of Renewable Materials, Vol.11, No.4, pp. 1881-1894, 2023, DOI:10.32604/jrm.2023.025400

    Abstract A poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide)(PLLA-PEG-PLLA) block copolymer has great potential for use as a flexible bioplastic. Highly flexible bioplastics are required for flexible packaging applications. In this work, a PEG was incorporated into block copolymer as a plasticizer by solvent casting. PLLA-PEG-PLLA/ PEG blends with different blend ratios were prepared, and the plasticizing effect and miscibility of PEG in block copolymer were intensively investigated compared to PLLA/PEG blends. The results indicated that the PEG was an effective plasticizer for the block copolymer. The blending of PEG decreased glass-transition temperature and accelerated the crystallization of both the PLLA and PLLA-PEG-PLLA matrices. The PEG… More > Graphic Abstract

    Study of Thermal, Phase Morphological and Mechanical Properties of Poly(L-lactide)-b-Poly(ethylene glycol)-b-Poly(L-lactide)/Poly(ethylene glycol) Blend Bioplastics

  • Open Access

    ARTICLE

    Nanocelluloses from Eucalyptus Wood Pulp: A Morphological Comparison

    Antonio J. F. Carvalho

    Journal of Renewable Materials, Vol.2, No.2, pp. 118-122, 2014, DOI:10.7569/JRM.2014.634108

    Abstract Two nanocelluloses from eucalyptus, namely microfi brillated cellulose (MFC) and cellulose nanocrystals (CNC), were prepared and compared by transmission electron microscopy (TEM). The MFC fi bers are 20–30 nm wide and are composed of very homogeneous bundles of aligned regular elementary fi brils of 3–5 nm diameter. They show long straight portions and short fl exible zones, attributed to crystalline and amorphous zones, respectively. The needle-shaped CNC was approximately 200 nm long and 10 nm wide in the wider portion. A model for the MFC structure, whose fl exible zones are formed by alignment of the amorphous portion of the… More >

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